Ariel

Princess Ariel is a fictional character, a mermaid, and the protagonist of Disney's 1989 animated film The Little Mermaid. She later appears in the film's prequel television series, direct-to-video sequel The Little Mermaid II: Return to the Sea and direct-to-video prequel The Little Mermaid: Ariel's Beginning.

While on a CIA fishing trip in "Francine's Flashback", CIA helicopters kill a mermaid that looks like Ariel from Disney's The Little Mermaid.

Klaus makes a painting of an Ariel figure in his fishbowl in "License to Till".